5. Muscular Pain
Muscular pain is common with people who have just had their flu shots, and it can be related to the body’s immune response to the injection. Again, this is a completely normal symptom – and it’s something that should go away within a couple of hours within having your flu shot.
People have described the associated muscular pain in a variety of ways, though most people describe it as feeling like they’ve just run a marathon and then some: It can manifest in several different ways. When it shows up, it’s an easy symptom to control, and taking some over-the-counter painkillers along with getting into a hot bath can do wonders for the associated pain.
If it persists for any longer than you expect it to or the muscular pain becomes more severe over time, it could mean there’s something else wrong that’s unrelated to the flu shot at all – and you should make an appointment with your doctor.